CekuraBench
All comparisons
OpenAIPhonic

GPT-Live 1 + GPT-6 Sol (low thinking) vs Phonic v1

GPT-Live 1 + GPT-6 Sol (low thinking) is ahead on reliability, success rate, agent responses, data accuracy and cost, and Phonic v1 on stalled calls and response time. The two tie on interruption.

Last updated Methodology by Dileep Chagam

Compare

Success rate by suite

Higher is better
Appointments59 scenariosMedicare23 scenarios
  • GPT-Live 1 + Sol lowOpenAI
    97%
    49%
  • Phonic v1Phonic
    97%
    26%
Each model's share of calls that passed every check, on each suite.
Verdict

Which to pick

Pick GPT-Live 1 + GPT-6 Sol (low thinking) for reliability across repeated calls (7.3 points higher), calls that pass every check (6.5 points higher), getting the agent's replies right (2.0 points higher), saving the caller's data correctly (11.6 points higher) and lower cost ($0.085 cheaper). Pick Phonic v1 for fewer stalled calls (12.2 points lower) and fast replies (0.42s sooner). They are level on handling interruptions.

Every metric, side by side

Reliability

Scenarios that passed on all three runs.

GPT-Live 1 + Sol low
75.6%2nd
Phonic v1
68.3%4th

GPT-Live 1 + Sol low, 7.3 points higher

Success rate

Calls that passed every check.

GPT-Live 1 + Sol low
83.7%3rd
Phonic v1
77.2%4th

GPT-Live 1 + Sol low, 6.5 points higher

Agent responses

Calls where the agent's replies reached the expected outcome.

GPT-Live 1 + Sol low
100.0%1st
Phonic v1
98.0%4th

GPT-Live 1 + Sol low, 2.0 points higher

Data accuracy

Calls where everything the agent saved matched exactly.

GPT-Live 1 + Sol low
89.0%2nd
Phonic v1
77.4%7th

GPT-Live 1 + Sol low, 11.6 points higher

Stalled calls

Calls where the agent went silent for 10 seconds or more.

GPT-Live 1 + Sol low
12.2%11th
Phonic v1
0.0%1st

Phonic v1, 12.2 points lower

Interruption

How well it handled being talked over, 0 to 5.

GPT-Live 1 + Sol low
4.8910th
Phonic v1
4.8911th

Level

Response time

Median time to start replying after the caller finishes.

GPT-Live 1 + Sol low
2.02s6th
Phonic v1
1.60s1st

Phonic v1, 0.42s sooner

Cost / min

One minute of call at the vendor's published rates.

GPT-Live 1 + Sol low
$0.0552nd
Phonic v1
$0.1408th

GPT-Live 1 + Sol low, $0.085 cheaper

The small figure is the place among ranked models. The cascade is not ranked.

Phonic v1 answers first

Phonic v1 1.60s, GPT-Live 1 + Sol low 2.02s at the median.

Response time, median to p90

Lower is betterMedianTo p90
Medianp90
  • Phonic v1Phonic
    Phonic v1: median 1.60s, p90 1.88s
    1.60s1.88s
  • GPT-Live 1 + Sol lowOpenAI
    GPT-Live 1 + Sol low: median 2.02s, p90 2.42s
    2.02s2.42s
1.5s2.5s
Seconds from the caller finishing to the agent starting to reply, per model.

What we saw on the calls

GPT-Live 1 + GPT-6 Sol (low thinking)

  • Near perfect on bookings, run after run.
All 4 notes on GPT-Live 1 + Sol low
Model
gpt-live-1
Setting
Delegates reasoning and tools to Sol
Voice
marin
Turn taking
Service turn detection
Audio
24 kHz
Cost
Includes the delegated backend model.

Phonic v1

  • Quickest to reply, and never left a caller waiting.
All 4 notes on Phonic v1
Model
phonic_v1
Setting
Intelligence high
Voice
sabrina
Turn taking
Service turn detection
Audio
16 kHz
Cost
The vendor's Starter plan rate per conversation minute, applied to each call's length; the Pro plan is $0.12.
See the full leaderboardReference agent

Related comparisons

Frequently asked questions

Is GPT-Live 1 + GPT-6 Sol (low thinking) or Phonic v1 more reliable?

GPT-Live 1 + GPT-6 Sol (low thinking) is more reliable, by 7.3 points. GPT-Live 1 + GPT-6 Sol (low thinking) passed 62 of 82 scenarios on all three runs, and Phonic v1 passed 56. A scenario only counts when every run of it passed.

Which should I pick, GPT-Live 1 + GPT-6 Sol (low thinking) or Phonic v1?

For a phone agent, GPT-Live 1 + GPT-6 Sol (low thinking), since it gets more scenarios right on every run. GPT-Live 1 + GPT-6 Sol (low thinking) is ahead on reliability, success rate, agent responses, data accuracy and cost, and Phonic v1 on stalled calls and response time. The two tie on interruption.

Which saves caller data more accurately, GPT-Live 1 + GPT-6 Sol (low thinking) or Phonic v1?

GPT-Live 1 + GPT-6 Sol (low thinking), by 11.6 points. GPT-Live 1 + GPT-6 Sol (low thinking) saved everything exactly right on 89.0% of the calls that save data, and Phonic v1 on 77.4%. On Appointments, 100.0% against 98.2%. On Medicare, 60.6% against 25.0%. A call counts only when nothing is missing, wrong, extra or saved twice.

Is GPT-Live 1 + GPT-6 Sol (low thinking) faster than Phonic v1?

No. Phonic v1 starts replying 0.42s sooner at the median. GPT-Live 1 + GPT-6 Sol (low thinking) takes 2.02s at the median and 2.42s at p90; Phonic v1 takes 1.60s and 1.88s. Both are measured on the call audio, from the caller finishing to the agent starting to reply.

Which handles interruptions better, GPT-Live 1 + GPT-6 Sol (low thinking) or Phonic v1?

They score the same. GPT-Live 1 + GPT-6 Sol (low thinking) scores 4.89 and Phonic v1 4.89 for how well the agent handled being talked over.

Which goes silent on callers less often, GPT-Live 1 + GPT-6 Sol (low thinking) or Phonic v1?

Phonic v1, by 12.2 points. The agent went silent for 10 seconds or more on 12.2% of GPT-Live 1 + GPT-6 Sol (low thinking) calls and 0.0% of Phonic v1 calls.

Which is cheaper, GPT-Live 1 + GPT-6 Sol (low thinking) or Phonic v1?

GPT-Live 1 + GPT-6 Sol (low thinking) is $0.085 cheaper a minute. GPT-Live 1 + GPT-6 Sol (low thinking) costs $0.055 a minute of call and Phonic v1 $0.140, at each vendor's published rates.

Where does the GPT-Live 1 + GPT-6 Sol (low thinking) vs Phonic v1 data come from?

Cekura ran both as the whole agent in the same open-source Pipecat pipeline, with the same prompt, tools and connection. A simulated caller worked through all 82 scenarios on live calls, three times each, 2,952 calls across the benchmark. A call passes only when the agent said the right things and saved the right data.